8117826549 has 16 divisors (see below), whose sum is σ = 12479494272. Its totient is φ = 4597705728.

The previous prime is 8117826547. The next prime is 8117826559. The reversal of 8117826549 is 9456287118.

It is not a de Polignac number, because 8117826549 - 2¹ = 8117826547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8117826547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1708084 + ... + 1712829.

It is an arithmetic number, because the mean of its divisors is an integer number (779968392).

Almost surely, 2^8117826549 is an apocalyptic number.

It is an amenable number.

8117826549 is a deficient number, since it is larger than the sum of its proper divisors (4361667723).

8117826549 is a wasteful number, since it uses less digits than its factorization.

8117826549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421036.

The product of its digits is 967680, while the sum is 51.

The square root of 8117826549 is about 90098.9819531830. The cubic root of 8117826549 is about 2009.7710644927.

The spelling of 8117826549 in words is "eight billion, one hundred seventeen million, eight hundred twenty-six thousand, five hundred forty-nine".